3.4 DOHC Idles high 2000 to 2500 rpms

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I have a 93 olds cutlass supreme 3.4 DOHC it sat thru winter and the battery died. Since getting running again it idles high and wont come down. I was told probably IAC valve and when I checked it with the key on the plunger popped off. So I got a new IAC and installed it. No change I then installed a new TPC no change. What is wrong with this thing???

gr_elvis in Grand Rapids MI

May 22, 2016

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RepairPal Certified shops can diagnose and repair your 1993 Oldsmobile Cutlass Supreme. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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Opens 8:00 AM Thu

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